-have ways of making you torque! That's the message from GM, which has recently unveiled an all-new lightweight V8 petrol engine that is set to find its way into Saabs and Vauxhalls from 2004.
The new 4.3-litre unit, here in development form in a Saab 9-5, produces 300bhp and nearly 400Nm of pulling power, making it one of the most tractable units in its class. Yet the all-alloy construction and plastic components mean it will weigh little more than a four-cylinder powerplant.
An innovative throttle-by-wire system does away with the usual accelerator cable to use a fully automated set-up. It proves quick yet predictable,
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with the feel of a conventional unit.
The engine is a keen performer, with its huge torque applied through a six-speed automatic gearbox. Yet even with the self-shifter, the V8 powerplant proves a handful in the current 9-5, with plenty of wheelspin and torque steer. Saab points out that these traits will be ironed out before production, while insiders hint the engine will be mated to a secret new 4WD system.
If so, Saab and Vauxhall's future looks exciting. The new unit is already earmarked for flagship versions of the Vectra Signum, and will also appear in the next-generation 9-5 and Vauxhall Omega - both due in 2005.
Juergen Zoellter
